Since the dust and smog in the past few years have given us a certain understanding of PM2.5 inhalable particulate matter, what is PM10?
PM10 refers to inhalable particles with a particle size of less than 10 microns. Inhalable particulate matter lasts for a long time in the ambient air, and has a great impact on human health and atmospheric visibility.
Inhalable particulate matter usually comes from motor vehicles driving on unpaved asphalt or cement roads, material crushing, grinding processes, and dust raised by the wind. After being inhaled by humans, inhalable particles will accumulate in the respiratory system, causing many diseases and causing great harm to humans.
"In the past, law enforcement on construction sites used law enforcement team members to go to the scene to pass inspections to discover problems. The work efficiency was low and it was difficult to catch the current situation."
In order to strengthen the centralized rectification of dust pollution, improve the on-site monitoring capabilities of environmental protection departments, and promote the accurate monitoring, management and treatment of air pollution sources, cities have begun to deal with construction sites, mining areas, roads, warehouses, ports and docks that are prone to generate dust. Local installation of dust detectors, and supporting video monitoring system, noise monitoring system, weather system, data acquisition system and communication system, etc., can monitor the concentration of atmospheric particulate matter, PM value, temperature, humidity, wind speed and direction in real time.
After the online monitoring system is installed, the ambient air quality is automatically monitored online, and the data obtained can be transmitted to the data platform in real time via wired or wireless networks, and can be obtained through cameras.
Law enforcement team members speak with data to check in real time the area where the online particulate matter monitoring system has been installed, and whether the dust prevention measures are in place. If the value of a certain point is too high, law enforcement team members can call the video surveillance system to find the cause, which will help the team members go to the scene to accurately enforce the law.
Such a system that the system is how to build it?
The monitoring sub-station integrates atmospheric PM1.0, PM2.5, PM10 monitoring, ambient temperature and humidity, wind speed and direction monitoring, noise monitoring, video monitoring (optional) and other functions; the data platform is a networked platform with an Internet architecture. It has the monitoring function of each sub-station and the data alarm processing, recording, query, statistics, report output and other functions. The system can also be linked with various pollution control devices to achieve the purpose of automatic control.
(1) Temperature and humidity sensor, radiation shield temperature and humidity sensor, (blind type) special temperature and humidity sensor for weather stations; 10-30V or 5-18V; Modbus RT U communication protocol;
(2) Wind speed sensor, RS485 communication interface, Modbus communication protocol;
(3) Wind direction sensor, 8 wind directions, RS485 interface, Modbus communication protocol
(4) Air quality sensor or particulate matter concentration sensor (PM2.5 PM10 uses the principle of laser scattering); there are many sensor customers or copywriting called transmitters also mean sensors; the communication interface can be RS485 (Modbus-RTU), 4-20mA , 0-5V, 0-10V
(5) Noise sensor, 30db-120db; RS485 (Modbus-RTU) interface
(6) LED electronic display, interface and size can be customized, the interface is generally RS485 or RS232;
(7) Acquisition host
Is there a recommended platform for the dust monitoring collection host?
Solution 1: I.MX6UL or AM335x
FETMX6UL- C core board FET335XD core board
(1) Support two-channel dual 100M Ethernet, support standard TCP/IP, UDP protocol stack to integrate network video surveillance into the system;
(2) Support Huawei ME909S full Netcom 4G module, and have passed long-term stability test
(3) Support 8 RS232/RS485/TTL, multiple I/O interfaces
(4) High standard industrial design, very suitable for harsh industrial environment
(5) Support Linux3.14, QT4.8.5, support a variety of LCD size screen design
Option 2: A40i core board
(1) Domestic industrial-grade platform, supports most of the current popular video and picture format decoding
(2) Integrated video monitoring function, saving a set of network video routing equipment
(3) Abundant peripherals can be connected, support 8 RS232/485, and various IO
(4) The dust monitoring camera has an integrated object recognition function, which can detect whether the vehicle is cleaned on the construction site